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<li class="navelem"><a class="el" href="dir_df9c78dcf3f59a33b12284f95992a64b.html">ripple</a></li><li class="navelem"><a class="el" href="dir_875063d0bf0fe9cb23dcbe977d2f1b80.html">beast</a></li><li class="navelem"><a class="el" href="dir_2b67fd6875b17637f054e6dcff6dfba3.html">utility</a></li> </ul>
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<div class="title">maybe_const.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//------------------------------------------------------------------------------</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> This file is part of Beast: https://github.com/vinniefalco/Beast</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com></span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">//==============================================================================</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef BEAST_UTILITY_MAYBE_CONST_H_INCLUDED</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define BEAST_UTILITY_MAYBE_CONST_H_INCLUDED</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/type_traits.html">type_traits</a>></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span><a class="code" href="namespacebeast.html">beast</a> {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">template</span> <<span class="keywordtype">bool</span> IsConst, <span class="keyword">class</span> T></div>
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<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="structbeast_1_1maybe__const.html"> 29</a></span> <span class="keyword">struct </span><a class="code" href="structbeast_1_1maybe__const.html">maybe_const</a></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">explicit</span> <a class="code" href="structbeast_1_1maybe__const.html#af635f99069c4285bf09e02dbb81b5708">maybe_const</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">using</span> <a class="code" href="structbeast_1_1maybe__const.html#a5b55f42c016c89dcf8cd78297303cb06">type</a> = <span class="keyword">typename</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/conditional.html">std::conditional</a> <IsConst,</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">typename</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/remove_cv.html">std::remove_const <T>::type</a> <span class="keyword">const</span>,</div>
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<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="structbeast_1_1maybe__const.html#a5b55f42c016c89dcf8cd78297303cb06"> 34</a></span>  <span class="keyword">typename</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/remove_cv.html">std::remove_const <T>::type</a>><a class="code" href="structbeast_1_1maybe__const.html#a5b55f42c016c89dcf8cd78297303cb06">::type</a>;</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> };</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">template</span> <<span class="keywordtype">bool</span> IsConst, <span class="keyword">class</span> T></div>
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<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="namespacebeast.html#a8043ff48907b4e6af56a2b63ddbac1c3"> 39</a></span> <span class="keyword">using</span> <a class="code" href="namespacebeast.html#a8043ff48907b4e6af56a2b63ddbac1c3">maybe_const_t</a> = <span class="keyword">typename</span> <a class="code" href="structbeast_1_1maybe__const.html#a5b55f42c016c89dcf8cd78297303cb06">maybe_const <IsConst,T>::type</a>;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  </div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> }</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#endif</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="astructbeast_1_1maybe__const_html_af635f99069c4285bf09e02dbb81b5708"><div class="ttname"><a href="structbeast_1_1maybe__const.html#af635f99069c4285bf09e02dbb81b5708">beast::maybe_const::maybe_const</a></div><div class="ttdeci">maybe_const()=default</div></div>
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<div class="ttc" id="astructbeast_1_1maybe__const_html"><div class="ttname"><a href="structbeast_1_1maybe__const.html">beast::maybe_const</a></div><div class="ttdoc">Makes T const or non const depending on a bool.</div><div class="ttdef"><b>Definition:</b> <a href="maybe__const_8h_source.html#l00029">maybe_const.h:29</a></div></div>
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<div class="ttc" id="anamespacebeast_html_a8043ff48907b4e6af56a2b63ddbac1c3"><div class="ttname"><a href="namespacebeast.html#a8043ff48907b4e6af56a2b63ddbac1c3">beast::maybe_const_t</a></div><div class="ttdeci">typename maybe_const< IsConst, T >::type maybe_const_t</div><div class="ttdoc">Alias for omitting typename.</div><div class="ttdef"><b>Definition:</b> <a href="maybe__const_8h_source.html#l00039">maybe_const.h:39</a></div></div>
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<div class="ttc" id="astructbeast_1_1maybe__const_html_a5b55f42c016c89dcf8cd78297303cb06"><div class="ttname"><a href="structbeast_1_1maybe__const.html#a5b55f42c016c89dcf8cd78297303cb06">beast::maybe_const::type</a></div><div class="ttdeci">typename std::conditional< IsConst, typename std::remove_const< T >::type const, typename std::remove_const< T >::type >::type type</div><div class="ttdef"><b>Definition:</b> <a href="maybe__const_8h_source.html#l00034">maybe_const.h:34</a></div></div>
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<div class="ttc" id="aremove_cv_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/remove_cv.html">std::remove_const</a></div></div>
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<div class="ttc" id="aconditional_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/conditional.html">std::conditional</a></div></div>
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<div class="ttc" id="anamespacebeast_html"><div class="ttname"><a href="namespacebeast.html">beast</a></div><div class="ttdef"><b>Definition:</b> <a href="base__uint_8h_source.html#l00582">base_uint.h:582</a></div></div>
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